Preparatory Access: Open Cut-Offs

The Call for Proposals for PRACE Preparatory Access Type A and Type B schemes is a continuously open call, with a maximum time-to-resources-access (start-date) of two weeks after the date of submission.

The next cut-off dates for Preparatory Access Type C and D proposals are:

  • 1 December 2020 – 11:00 AM CET
  • 1 March 2021 – 11:00 AM CET
  • 1 June 2021 – 11:00 AM CEST
  • 1 September 2021 – 11:00 AM CEST

The following table shows PRACE HPC Tier-0 systems and their current availability for Preparatory Access.

SystemArchitectureSite (Country)Type AType BType C
Joliot-Curie KNLBULL Sequana X1000GENCI@CEA (FR)
Joliot-Curie RomeBULL Sequana XH2000GENCI@CEA (FR)
Joliot-Curie SKLBULL Sequana X1000GENCI@CEA (FR)
HAWKHPE ApolloGCS@HLRS (DE)
JUWELS BoosterBULL Sequana XH2000GCS@JSC (DE)
JUWELS ClusterBULL Sequana X1000GCS@JSC (DE)
SuperMUC-NGLenovo ThinkSystemGCS@LRZ (DE)
Marconi100IBM Power 9 AC922 WhiterspoonCINECA (IT)
MareNostrumLenovo SystemBSC (ES)
Piz DaintCray XC50 SystemETH Zurich / CSCS (CH)Not available

Note 1: The JUWELS Booster is installed in 2020, therefore proposals for PRACE preparatory access can only be accepted after its official start of production.

Note 2: Applications requesting Piz Daint must use GPU accelerated codes.

The following table lists the PRACE Tier-1 HPC systems, which are available in the context of Preparatory Access Type D.

The specific system will be selected by PRACE, but applicants can specify preferences.

Tier-1 systemArchitecture
ARCHER, hosted by EPCC, (United Kingdom)Cray XC30
ARIS, hosted by GRNET, (Greece)Lenovo NextScale
Bem, hosted by WCSS, (Poland)Haswell based Cluster
Beskow, hosted by KTH-PDC, (Sweden)Cray XC40
Cartesius, hosted by SURFsara, (Netherlands)Bull Bullx B720/B710
EAGLE, hosted by PSNC (Poland)Intel Xeon E5-2697
GALILEO, hosted by CINECA, (Italy)Lenovo NextScale
Mahti, hosted by CSC (Finland)AMD Rome 7H12
Salomon, hosted by VSB-TUO at IT4I, (Czech Republic)SGI ICE-X

The indicative schedule of the PRACE Calls for Proposals for Preparatory Access is as follows.

ActionTypes A & BType C and D
Proposal submissionContinuously openQuarterly cut off dates – 1st working day of the quarter
(March; June; September; December)
Administrative validation2 working days after submission2 working days after the cut-off date
Review of proposals & decisionUp to 2 weeks after submissionUp to 2 months after submission
Access start dateUp to 2-3 weeks after submissionAccess is provided starting approx. 45-60 calendar days after the cut-off date.
Please note that access of the December cut-off date may be slightly delayed due to Christmas break.

The process to access resources after the communication of the decision on allocation is two-fold:

  • Awardees are asked to confirm their availability and readiness to use the awarded resources during the stated period of time
  • Access is provided after receipt of a positive reply.

The allocation decision, including the type of access, start/end dates, duration and the resources awarded is not open for negotiation.

As detailed in the Terms of Reference of the Call for Proposals for Preparatory Access, “the award of Preparatory Access proposals of Types A, B, C and D is limited by the amount of resources available. For type C and D, there are also limitations regarding the availability of the support from experts (in terms of staff hours) and the type of expertise required.”

In case of oversubscription of a particular resource, resources will be awarded on a first-come, first-served basis to suitable proposals based on the submission date until the resources are exhausted.